Professional quality - highly pigmented water-based acrylic paint in stick form. The paint dries lightfast, opaque and waterproof - a pump-valve system ensures even paint flow Indoor & outdoor - high-quality artist pigments, opaque, lightfast, low smell, durable and resistant to the design of large artworks, outdoor and interior murals. Flexible - The paints dry flexibly and adhere to almost all surfaces such as canvas, wood, concrete, glass, polystyrene and are suitable for indoor and outdoor use .Line thickness - The markers are available in two different sizes: the fine tip with a line thickness of approx. 2-4 mm and a wide version with a line thickness of approx. 15 mm.